Pieece



gia-tten tat-rs gebaat @frn DUC. PIERCE, 0F CLAYTON, New Yo lRj-K.Letters Patent No. 73,03,dated January 7, 1868; antedatedecember 25,1867.

IMPRCIIED ANCHOR.

TO ALL WHOM IT MAY CON CERN:

13e it known -that 1, D. C. PIERCE, of Clayton, in the county ofJefferson, and State of New York, have. invented a new and improvedAnchor; and that the following description, taken in connection with theaccom-i panying drawings hereinafter referred to, forms a full and exactspecification of-the same, wherein'I have set forth the nature andvprinciples of my said improvements, by which my invention may bedistinguished from all others of a similar class, together with suchparts as I claim, and desire to have. secured to me by Letters Patent. I

This invention consists in constrhcting the anchorwith a singleyfluike,pivoted in one end of a frame, which serves as a shank for the anchor, ashackle being attached to the`opposite end of the frame, all being con`structed and arranged in such aomvanner that the cable cannot foul orwind around the iluke or any other part of the anchor, and the flukemade to catch with certainty as soon as-the anchor is let down and thevessel moves a trifle under the action of the tide or wind. In theaccompanying sheet of drawings-- Figure 1 is a side view of myinvention.

Figure 2, a plan or top view of the same.

Similar letters of reference'indicate like parts.

A represents the fluke of the anchor, which lis formed of ablade-portion, a, and what may be termed a head-portion, b, the outersur'face of which is convex'. This fluke is secured by a pivot-bolt, B,between one end of two curved bars, C'O, the uke`being balanced, ornearly so, on .the pivot-bolt, and the ends of the bars C C extendbetween lugs or, projections c e, at each side'of the bead of the linke,as shown clearly in g. 1. The inner side of the head I, from which theblade a of the fluke `projects, is a plane or nearly plane surface. Thebars C Care connected at their outer ends bya rod, D, on which ashackle, E, is fitted loosely, and to which shackle the' cableisattnched. The outer Aends 'of these bars are much Afurther apart thanthe opposite ends, between which the fluke is pivotecl. When the anchoris lowered, the curved bars (1C, which perform the function of a shankand a stock, cause the anchor, .if either bar 'strike Athe bottom first,to turn to a horizontal position, and when the anchor is vmoved\atrifle, under the motion of the vessel, the lower edge of the head bwill, inconsequcnce of being in contact with the bottom, turn the pointof the blade a down into the bottom, and cause it topenetrate the same,so as to hold the vessel securely The fluke may-he either of wrought orcast iron. Itis believed that east iron 'would answer the purpose.The'lugs 'or projections c c take all strain oil' from the pivot-bolt13when the vessel is riding at anchor, as will be fully understood byreferring to fig. 1.

Having thus described my. invention, I claim as new, and desire tosccureby Letters Patent-H The shackle E, in combination with the barsCIC, and the pivoted iluke A, all arranged substantially as and for thepurpose specified.

lThe above speeiliention of my invention signed by me, this 24th day ofApril, 1867.

D. C. PIERCE.

Witnesses:

WM. F. McNAuARA, J. A. SERVICE.

